Atom N455 vs Pentium 957

Primary details

Comparing Pentium 957 and Atom N455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Pentium	Intel Atom
Architecture codename	Sandy Bridge (2011−2013)	Pinetrail (2009−2011)
Release date	13 June 2011 (13 years ago)	1 June 2010 (14 years ago)
Launch price (MSRP)	$134	$64

Detailed specifications

Pentium 957 and Atom N455 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	1 (Single-Core)
Threads	2	2
Base clock speed	1.2 GHz	1.66 GHz
Boost clock speed	1.2 GHz	1.67 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	533 MHz
Multiplier	12	no data
L1 cache	128 KB	64 KB (per core)
L2 cache	512 KB	512K (per core)
L3 cache	2 MB (shared)	0 KB
Chip lithography	32 nm	45 nm
Die size	131 mm2	66 mm2
Maximum core temperature	100 °C	100 °C
Number of transistors	504 million	123 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium 957 and Atom N455 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	1
Socket	FCBGA1023	FCBGA559
Power consumption (TDP)	17 Watt	6.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 957 and Atom N455. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
FMA	+	-
Enhanced SpeedStep (EIST)	+	+
My WiFi	-	no data
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Demand Based Switching	-	-
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Pentium 957 and Atom N455 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 957 and Atom N455 are enumerated here.

VT-d	-	-
VT-x	-	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 957 and Atom N455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	8.01 GB	2 GB
Max memory channels	2	1
Maximum memory bandwidth	21.335 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics (Sandy Bridge)	Intel GMA 3150
Graphics max frequency	800 MHz	no data

Graphics interfaces

Available interfaces and connections of Pentium 957 and Atom N455 integrated GPUs.

Number of displays supported	2	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Peripherals

Specifications and connection of peripherals supported by Pentium 957 and Atom N455.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Recency	13 June 2011	1 June 2010
Physical cores	2	1
Chip lithography	32 nm	45 nm
Power consumption (TDP)	17 Watt	6 Watt

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